Are you checking the "Remember Me" box on the login page? If you are checking that box and it still doesn't remember you then you are likely doing something to clear your cookies.

The issue was definitely with the server and not your computer. The site just happens to be up now. Though it is technically possible to get a 404 error because of something on your computer, it's more likely an actual error returned by the server. A 500 internal server error is pretty much...

I'd say it is pretty common to get hackers/script kiddies/exploit sniffers from the former Soviet areas, China, and South America. Were they actually brute forcing the server or where they trying to brute force just the web page? As far as page loads go, there are some things you could do with...